Organic−inorganic hybrids synthesized from lacunary polyoxotungstates (POMs) have been screened as oxidation catalysts with H2O2 under MW irradiation. Yields up to 99% have been obtained in 25−50 min depending both on the POM structure and on the organic moiety. The reaction scope, optimized with the best performing catalyst [γ-SiW10O36(PhPO)2]4-, includes epoxidation of terminal and internal double bonds, alcohol oxidation, and sulfoxidation, as well as oxygen transfer to electron-deficient substrates as chalcone, ketones, and sulfoxides.

Hybrid polyoxotungstates as second-generation POM-based catalysts for microwave-assisted H2O2 activation

CARRARO, MAURO;SARTOREL, ANDREA;SCORRANO, GIANFRANCO;BONCHIO, MARCELLA
2006

Abstract

Organic−inorganic hybrids synthesized from lacunary polyoxotungstates (POMs) have been screened as oxidation catalysts with H2O2 under MW irradiation. Yields up to 99% have been obtained in 25−50 min depending both on the POM structure and on the organic moiety. The reaction scope, optimized with the best performing catalyst [γ-SiW10O36(PhPO)2]4-, includes epoxidation of terminal and internal double bonds, alcohol oxidation, and sulfoxidation, as well as oxygen transfer to electron-deficient substrates as chalcone, ketones, and sulfoxides.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11577/2450086
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